The 3.5 pulley on a P1 should be 11 or 12psi IIRC allthough I have a cam on 112lsa, full exhaust, mild head work, so it drops it some.. With the P1 I do not see 500 crank HP out of reach.. I am well past that mark..

 

that is nice to know. since i have long tubes i dont expect the full amount of boost either. were you running a 6 or 8 rib setup? how was your belt slip?

 

Ill be on mine soon as soon as I can get it to stay on and give u my point of view on my p1 with a 3'1 rip pulley

 

A stock 5.3l with longtubes should see 13-14lbs with a 3.50" pulley. I was consistantly seeing 10lbs with a 3.70" on a P-1Sc on a stock 6.0l w/longtubes.

Rick

 

that would be wonderful! I will have a sped cam in as well. (212/224..115lsa) still that amount of boost?

 

I'd guess about a 1-1 1/2lbs drop tops with that cam. With that wide 115 LSA, it should be a good Procharger cam.

Rick